Hi, there, doesn't anyone know why I get this "C:\users\desktop\dsdsk.svg could not be saved" message when I try to save a svg as Optimized SVG.I don't have the same problem when I'm saving as Inkscape SVG.

The Inkscape version is 0.92.What I want to do is to turn PNG image to optimized SVG file, so what extension option should I choose to use?Here's the original PNG file and the Inkscape SVG that I saved.